About HYuan.1

HYuan.1 · 2023-04-05

HYuan.1 · 2023-03-24

NUCLEO-L4R5ZI board, CN12 header: Pin76 = PG7, pin66 = PG8.SB130 and SB131 have been removed from the board. config PG7, PG8 as GPIO output pins, but cannot toggle these two pinsHere is the code: GPIO_InitTypeDef GPIO_InitStructure = {0}; __HAL_RCC...

HYuan.1 · 2023-04-05

Only when connect NRST pin to ST-LINK, the STM32L4R9 can be connected. But from the data sheet the NRST pin is not needed.

HYuan.1 · 2023-03-26

Thanks for help. This issue is solved by calling "HAL_PWREx_EnableVddIO2();" as JW pointed out "PG2 to PG15 pins are supplied not from VDD but from VDDIO2, and you have to switch the VDDIO2 domain on by setting PWR_CR2.IOSV" Thank you.

HYuan.1 · 2023-03-25

Yes. SB193 and 195 are closed.

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Use STM32 ST-LINK Utility, cannot find the target, STM32L4R9ZIY6PTR-WLCSP144. Four ST-LINK pins connected: SWCLK, SWDIO, Vtarget, GND. Note:NRST pin of STM32L4R9ZIY6PTR is not connected.

NUCLEO-L4R5ZI board CN12 header Pin76 = PG7, pin66 = PG8, config as GPIO output pins, but cannot toggle these two pins, SB130 and SB131 have been removed from the board.

Re: Use STM32 ST-LINK Utility, cannot find the target, STM32L4R9ZIY6PTR-WLCSP144. Four ST-LINK pins connected: SWCLK, SWDIO, Vtarget, GND. Note:NRST pin of STM32L4R9ZIY6PTR is not connected.

Re: NUCLEO-L4R5ZI board CN12 header Pin76 = PG7, pin66 = PG8, config as GPIO output pins, but cannot toggle these two pins, SB130 and SB131 have been removed from the board.

Re: NUCLEO-L4R5ZI board CN12 header Pin76 = PG7, pin66 = PG8, config as GPIO output pins, but cannot toggle these two pins, SB130 and SB131 have been removed from the board.